Re: [PATCH rdma-core] kernel-boot: modules: Load ib_umad for RoCE hardware

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On Wed, Apr 04, 2018 at 10:26:47AM +0200, Nicolas Morey-Chaisemartin wrote:
> ib_umad is required to get ibstat working.
> Auto-load it for RoCE hardware so it works out of the box
> 
> $ ibstat
> ibwarn: [4638] umad_init: can't read ABI version from /sys/class/infiniband_mad/abi_version (No such file or directory): is ib_umad module loaded?
> ibpanic: [4638] main: can't init UMAD library: No such file or directory
> $ modprobe ib_umad
> $ ibstat
> CA 'bnxt_re0'
> 	CA type: Broadcom NetXtreme-C/E RoCE Driver HCA
> 	Number of ports: 1
> 	Firmware version: 20.8.29.0
> 	Hardware version: 0x14e4
> 	Node GUID: 0x9edc71fffeb69930
> 	System image GUID: 0x9edc71fffeb69930
> 	Port 1:
> 		State: Down
> 		Physical state: Disabled
> 		Rate: 100
> 		Base lid: 0
> 		LMC: 0
> 		SM lid: 0
> 		Capability mask: 0x041d0000
> 		Port GUID: 0x9edc71fffeb69930
> 		Link layer: Ethernet
> 
> Signed-off-by: Nicolas Morey-Chaisemartin <nmoreychaisemartin@xxxxxxxx>
> ---
>  kernel-boot/modules/roce.conf | 3 +++
>  1 file changed, 3 insertions(+)

Is this just a userspace bug in ibstat or do roce ports actually implement umad?

Jason
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